baber/WOPTO huggingface dataset:
Patent JP-H04154069-A (JP)
Title: Spark plug for internal combustion engine
Inventor: NAKAMURA SHINICHI
IPC: H01T13/32
Filed: 1990-10-17
Abstract: PURPOSE:To improve heat resistance of an earth electrode so as to prevent destruction by a break by providing a slit, tilted in an internal diametric direction, in a peripheral edge part of a main unit metal fixture, and connecting this slit to the earth electrode. CONSTITUTION:Constitution is provided of an insulator 2 and a main unit metal fixture 3 provided with an earth electrode 10 in a position, opposed to a point end of a center electrode 4, and a thread part 11, used in the case of mounting to an internal combustion engine, in the side periphery of the electrode. In the earth electrode 10 in the position opposed to the point end of the center electrode 4, a slit 13, sinking in an internal diametric side direction, is provided in a peripheral edge part 12 of the main unit metal fixture 3 and also satisfying a relation where C<=A<=E/2 in the case of assuming A for width of the slit 13, C for width of the earth electrode 10 and E for internal diameter of the main unit metal fixture 3. In this way, deterioration of heat resistance by a swirl influence relating to the earth electrode 10 is prevented.
Patent JP-H07124381-A (JP)
Title: Device for attaching control unit in washing machine and so on
Inventor: IZAWA KATSUYA
IPC: D06F39/00
Filed: 1993-11-05
Abstract: PURPOSE:To prevent a control unit from being destroyed by removing the control unit by force without perceiving attaching screws which are fastened, when a control unit is removed for repairing service of a washing machine or a dehydrating machine and so on. CONSTITUTION:An operation board 8 is internally mounted by a control unit 7 arranging electric parts. The board 8 and the control unit 7 are screwed by attaching screws 24. Each of the screws 24 comprises four parts of a head part 24a, a held space part 24d, a washer part 24b, and a screw part 24.
Patent JP-H01118413-A (JP)
Title: Manufacture of resin insulating tube
Inventor: NAKANISHI MASARU
IPC: B29L31/34
Filed: 1987-10-30
Abstract: PURPOSE:To manufacture a high quality insulating tube by a method wherein a vertically installed mold is used for casting the insulating tube by pouring resin from the upper end of the die and the top surface and the underside of the insulating tube are cut after demolding in order to remove foreign matters, which float up or settle down to the upper end or lower end of the insulating body during casting, by cutting off. CONSTITUTION:A die 1 for molding tube is installed vertically and the external peripheral side molding surface and the internal peripheral side molding surface of the mold are both vertical or tapered ones. Liquid epoxy resin E is poured in the die 1. Normally, inorganic filler is added to said liquid epoxy resin. Even if there are filler with large particle size or metallic foreign matters in the filler, they settle down to the bottom surface of the resin in the die due to their higher specific gravities. The stoppage of said foreign matters to the internal side surface can be eliminated since the side surface is a vertical one or a tapered one so as to form a divergent space. On the other hand, even if there are fibrous foreign matters in the filler, they float up to the top surface of the resin in the mold due to their lower specific gravity. After that, an insulating tube is demolded and the top surface and underside of the insulating tube are cut off by the distance d1 and d2, resulting in completing the manufacturing of the high quality epoxy insulating tube.
Patent JP-H0588124-A (JP)
Title: Optical modulator
Inventor: HOSOI TORU
IPC: G02F1/035
Filed: 1991-09-27
Abstract: PURPOSE:To eliminate a resonance phenomenon and make the band-width wide by coating the flank and reverse surface of a substrate with a conductive material and grounding them. CONSTITUTION:On the Z-cut Y-axial propagation lithium niobate substrate 11, a pattern is formed of a titanium thin film of 6-12mu in waveguide width and 400-1000Angstrom  in film thickness, and thermal diffusion is carried out at 950-1100C to manufacture single-mode titanium diffused optical waveguides 12a and 12b. Asymmetrical progressive wave type electrodes 14a and 14b are formed on a buffer layer 13 formed on a silicon dioxide thin film of 0.3-2mum in thickness by using a photolithography method. Further, elements of the optical modulator is formed by diking the substrate to optional width and the flanks and reverse surfaces of the respective elements are grounded by providing a conductive material layer 15 formed of an electric good conductor.
Patent JP-H08134606-A (JP)
Title: Nonoriented silicon steel sheet having high magnetic flux density after stress relief annealing
Inventor: KAWAMATA RYUTARO
IPC: H01F1/16
Filed: 1994-11-10
Abstract: PURPOSE: To produce a nonoriented silicon steel sheet having high magnetic flux density after stress relief annealing by forming a texture, satisfying the prescribed conditions, in a steel sheet before stress relief annealing, in a nonoriented silicon steel sheet containing specific amounts of Si and C. CONSTITUTION: A nonoriented silicon steel sheet, containing, by weight, <=7.00% Si and <=0.010% C in steel and used for iron core for use in electrical equipment, such as rotary machine iron core and transformer iron core, is provided, before stress relief annealing, with a texture in which I(100) and I(111) as the values of the ratios of the X-ray reflected surface intensities of (100) and (111) orientations in the pseudoplane parallel to a sheet surface in the part between the surface layer and a position at a depth one-fifth the sheet thickness from the surface layer to a random texture, satisfy relational inequality 0.50<=I(100) /I(111) . By this method, the nonoriented silicon steel sheet having high magnetic flux density after stress relief annealing can be obtained.
Patent JP-H0585169-A (JP)
Title: Automobile door trim and manufacture thereof
Inventor: ARAKI KAZUO
IPC: B29L31/58
Filed: 1991-09-27
Abstract: PURPOSE:To form a smooth curved surface along the surface of a core material by preventing recessed and protruded parts from being generated on surfaces of a door trim. CONSTITUTION:In an automobile door trim 10 providing a core material 20 composed of a hard urethane foam and a facing 40 adhesively laminated through a cushion material 30 on a surface side of this core material 20, an olefin thermoplastic elastomer sheet of very small heat shrinkage factor is used as the facing 40. In this way, the facing 40 positioned on a bubble 20c provided on concave and convex surface parts 20a, 20b of the door trim can be prevented from protruding upward or sinking in the bubble 20c.
Patent JP-H07130221-A (JP)
Title: Electric insulating polyethylene material
Inventor: SHIMOURA HITOSHI
IPC: C08F6/00
Filed: 1993-11-05
Abstract: PURPOSE:To provide an electric insulating polyethylene material improving an impulse destruction resistance characteristic. CONSTITUTION:An electric insulating polyethylene material is characterized by removing at least partly a total low molecular weight polyethylene component of 2000 or less weighted mean molecular weight, contained in a non- crosslinked or crosslinked low density polyethylene material, from this low density polyethylene material. This electric insulating low density polyethylene material has a high impulse destruction resistance characteristic higher, for instance, even by about 40kV/mm or more as compared with a non-reformed polyethylene material. accordingly, it is very useful as an insulator for a superhigh voltage power cable.
Patent JP-H02126181-A (JP)
Title: Absolute-gravity accelerometer
Inventor: KURODA KAZUAKI
IPC: G01V7/14
Filed: 1988-11-04
Abstract: PURPOSE:To improve the measuring accuracy of an absolute-gravity accelerometer applying a Micheloson type laser interferometer by using a dropping body fitted with both of a beam splitter and reflecting mirrors. CONSTITUTION:The light emitted from a source is led to an interferometer by means of mirrors through a beam splitter above a beam adjuster. The light returned from each reflecting mirror is made incident on a photodetector, by which the light is analyzed after the light is converted into electric signals, through the beam splitter. The light enters and comes out from a vacuum tank through a upper beam splitter. Although longitudinal vibrations are induced to a dropping body when the body is released, only a secondary effect appears in interference signals, since the apparent optical center of a corner cube prism 2 by means of the beam splitter 1 vibrates in the horizontal direction. In other words, the dropping body can be measured when the body drops in a short dropping distance, since the vibrations produced at the time of release do not lower the grade of the signals.
Patent JP-H07111659-A (JP)
Title: Monitoring device
Inventor: HAMADA NORINOBU
IPC: H04N9/29
Filed: 1993-10-12
Abstract: PURPOSE:To suppress leakage electric field and to enable a pressure check and magnetization prevention by performing the on/off control of the relay switch energizing a degaussing coil in accordance with the operation state of a monitoring device. CONSTITUTION:When a main switch 2 is turned off, either one of relay switches SW1 and SW2 is connected with a power source circuit 3. By the switch 2, an AC power source is turned on, the both of the SW1 and SW2 are turned off when a monitoring device is in a remote control standby state and the discharge of the leakage electric field from a degaussing coil 8 is prevented. When a DC power source is turned on so that the monitoring device may be in its operation state in the standby state, the both of the SW1 and SW2 are turned on, degaussing is performed by flowing current to the coil 8. After a few second passes, the SW1 and SW2 are turned off. Therefore, when the monitoring device becomes its operation state, the coil 8 is completely cut off from a power source line and leakage electric field is not radiated.
Patent JP-H08140099-A (JP)
Title: Coding device and method
Inventor: HARANISHI MASAKI
IPC: H04N19/503
Filed: 1994-11-11
Abstract: PURPOSE: To suppress transmission code amount, to reduce dropping of a frame accompanied by the suppression and to facilitate the recognition of the object in a moving image by performing a control not to perform the transmission of the conversion coefficient of a color difference signal by invalidating the component of a color difference signal block when the motion vector within a macro block header exceeds a prescribed threshold. CONSTITUTION: When the video signal converted into the image format (CIF, QCIF) which is preliminarily stipulated by H. 261 is inputted in an information source code part 101, the signal is coded by a prescribed macro block (MB) unit. At this time, the MB having large motion vector obtained by the predictive image outputted by the coding processing of the previous frame and an input image and much code amount is made to finally prevent the transmission of the block of a color difference signal from being performed by operating the macro block header (MB header) stipulated by H. 261 by a coding control part 103.
Patent JP-H01120441-A (JP)
Title: Clutch device for cooling fan
Inventor: SHIGEOKA TAKASHI
IPC: F01P7/08
Filed: 1987-11-04
Abstract: PURPOSE:To obtain the captioned clutch having both simple structure and high reliability by providing a clutch mechanism which pushes a piston, resisting the resilient force of a spring, because of a change in the volume of the wax, which relates to the ambient temperature, thereby dispensing with the thermovalve used in the conventional type. CONSTITUTION:As the temperature of wax 13 goes up, the volume of the wax 13 is increased, and consequently the wax 13 pushes a clutch disc 5 via both a piston 10 and a clutch plate 6. By adjusting the stroke of the piston 10, which is caused by an increase in the volume of the wax 13, the pushing pressure, by which the clutch disc 5 is pushed, can be varied, thereby varying the clutch capacity. As a result, the revolving speed of a cooling fan 1 can be varied. Therefore, water temperature or oil temperature of the engine can be controlled to an appropriate temperature. Accordingly, the pressure-source circuit or the thermovalve for pressure control, which have been indispensable in the conventional system, can be dispensed with. As a result, an inexpensive clutch device for the cooling fan 1 having both simple structure and high reliability can be obtained.
Patent JP-H08137989-A (JP)
Title: Optical character reader
Inventor: TAMURA YASUHIRO
IPC: G06K9/42
Filed: 1994-11-11
Abstract: PURPOSE: To perform the segmentation and recognition processing of a character for magnified/contracted image data without generating new format information. CONSTITUTION: A magnification for format information 5 is detected by a magnification detecting part 1 based on magnification identification information formed on image data, and conversion to magnify/contract the format information 5 is performed by a format conversion part 4 based on a detected value, and a character pattern at every character is segmented from image memory 3 in which the image data is stored by a character segmenting part 6 based on such conversion, and a reference pattern dictionary 8 is converted to a magnification correction pattern dictionary by a pattern dictionary conversion part 7 so as to obtain a pattern unmagnified for the character pattern based on a magnification detection value,  and recognition processing can be performed by matching the character pattern segmented by the character segmenting part 6 with the magnification correction pattern dictionary converted by the pattern dictionary conversion part 7 by a recognition processing part 9.
Patent JP-H01121352-A (JP)
Title: Epoxy resin composition, sealant for semiconductor device and material for laminated board
Inventor: NISHIKAWA AKIO
IPC: B32B27/38
Filed: 1987-11-04
Abstract: PURPOSE:To provide a resin composition containing a polyfunctional epoxy compound and a specific fluorine-containing resin, phenolic resin or hy droxystyrene polymer, having excellent heat-resistance and low water-absorption and moisture permeability and useful as a sealing agent for semiconductor device, etc. CONSTITUTION:The objective composition contains (A) a polyfunctional epoxy compound (e.g., diglycidyl ether of bisphenol A) and (B) a fluorine-containing resin composed of constituent unit of formula I and/or formula II [R', R'' and R''' are F, CF3, etc.; X1 is H, methyl, etc.; X2 is group of formula III (q is O, S, etc.), formula IV, etc.] obtained e.g. by thermally reacting a novolak-type phenolic condensate with a fluorine compound in the presence of a tert-amine, etc., or (C) a phenolic resin composed of constituent units of formula V and/or formula VI (X3 is same as X1; X4 is same as X2) or (D) a hydroxystyrene poly mer composed of constituent units of formula VII and/or formula VIII.
Patent JP-2001100036-A (JP)
Title: Phase difference plate, elliptically polarizing plate, separation element for circularly polarized light and liquid crystal display device
Inventor: ITO YOJI
IPC: G02F1/13363
Filed: 1999-09-29
Abstract: PROBLEM TO BE SOLVED: To provide a phase difference plate with which a liquid crystal cell can be accurately optically compensated even when the temperature and humidity change. SOLUTION: The phase difference plate has an optical anisotropic layer formed from liquid crystal molecules on a transparent support. In the plate, the transparent support has 10 to 1,000 nm phase difference in the plane or thickness direction, and the absolute modulus of photoelasticity of the transparent support is controlled to <1×10-6 cm2/kg.
Patent JP-H11113906-A (JP)
Title: Piezoelectric element and its manufacture
Inventor: TSUTAKI SHINICHI
IPC: H01L41/45
Filed: 1997-10-09
Abstract: PROBLEM TO BE SOLVED: To provide a piezoelectric element wherein the precision of a height dimension from the edge tip end to the bottom surface which is formed of a recessed curved surface and side surfaces of the piezoelectric element, is high. SOLUTION: For this piezoelectric element 1, the height dimension (h), the width dimension (w) and the length dimension (l) of a piezoelectric ceramic of a flat-plate- form member are worked to specified dimensions in advance by obtaining a right angle, and a recessed curved surface 2 is formed on this piezoelectric element 1 which is made into a rectangular parallelopiped. In this case, a grinding stone is rounded in a manner to correspond with the radius of curvature R of the recessed curved surface, and at least one flat surface side of two flat surfaces 3a, 3b being confronted of the piezoelectric element 1, is ground. Thus, the recessed curved surface of an approx. cylindrical surface shape is formed in a manner to cross with the first flat surface 3a, and at the same time, flat surface parts 4a, 4b remain.  For this reason, the height dimension (h) of the piezoelectric element 1 is kept at a high precision, and an edge part formed of the recessed curved surface and side surfaces, which has been formed in a conventional piezoelectric element is eliminated, and a defective product due to chips and cracks is eliminated.
Patent JP-H04154133-A (JP)
Title: Prevention of short circuit of bonding wire
Inventor: KYOMASU RYUICHI
IPC: H01L21/60
Filed: 1990-10-18
Abstract: PURPOSE:To prevent an electric short circuit in a process after a wire bonding operation and to eliminate a defect due to a wire by a method wherein, after the wire bonding operation, an insulating film is applied to the wire. CONSTITUTION:At an ordinary wire bonding operation, a bare bonding wire 2 on which an insulating film 1 has been formed is used and an IC chip 3 which has been fixed to a lead frame 4 is bonded. In this method, the surface of the wire 2 whose bonding operation has been finished is coated immediately with the insulating film 1. As a result, immediately after the bonding operation has been finished, a semiconductor device A including the chip 3 is sandwiched between a spray 6 and a vacuum suction apparatus 7, connected to a filter not shown in the figure, which have been installed in the upper part and the lower part. The semiconductor device A including the chip 3 is step-fed, and the insulating film 1 is applied to the wire 2 by using an insulating agent. At this time, an insulating-agent jet stream apparatus which executes the above operations collectively may be used without using the spray 6 and the like. Thereby, even sharp edges of the chip 3 and the frame 4 can be coated.
Patent JP-H11103336-A (JP)
Title: Power source for portable telephone set
Inventor: TAKASE MAMORU
IPC: H04B7/26
Filed: 1997-09-26
Abstract: PROBLEM TO BE SOLVED: To provide an external power source for portable telephone set avail able even in an emergency such as power failure. SOLUTION: A cover 11 capable of being opened/closed is provided to a compact box type power supply main body 1 and a solar battery 12 is mounted on the case 11 together with the rear side of the case 11 so as to be exposed when the cover 11 is opened. Furthermore, a chargeable battery such as a nickel cadmium battery is contained to a charging battery container section 13 under the solar battery 12, and a dry battery such as 006P connects to an external battery connection section 14a covered by a cover 14.  On the occurrence of emergency such as power failure, one plug 32 of a power connector cord 3 connects to an external power supply connection terminal of a portable telephone set 2 and the other plug 31 is pugged to a connector jack 15 of the main body 1 to control a mode changeover switch 16 and the power is suppied to the portable telephone set 2 by selecting the solar battery 12, the charging battery in the charging battery container section 13 charged in advance, or the dry battery such as 006P connected to the external battery connection section 14.
Patent JP-H08135564-A (JP)
Title: Piston pump motor
Inventor: INOUE ATSUSHI
IPC: F04B1/20
Filed: 1994-11-11
Abstract: PURPOSE: To reduce the generation of cavitation due to a jet flowing through the notch groove of a valve plate, in a piston port motor having a notch groove which is formed in the port end part of the valve plate and relax the change of the containment pressure of a cylinder. CONSTITUTION: Three or more notch grooves 14 and 15 in a V-shape in cross section extending from the starting ends of a suction port 10 and a delivery port 11 approximately in the tangential lines of the ports are formed in a contact surface between a valve plate 6 and a cylinder block.
Patent JP-H07124532-A (JP)
Title: Ultrasonic flash removing and washing apparatus
Inventor: SHIBANO YOSHIHIDE
IPC: B08B3/12
Filed: 1993-11-08
Abstract: PURPOSE:To provide an ultrasonic flash removing and washing apparatus capable of perfectly removing the flash of a work. CONSTITUTION:A work 6 is immersed in the washing soln. 1 received in a washing tank 2 equipped with an ultrasonic vibrator 5. The washing soln. 1 set to such a degassed state that the amt. of dissolved oxygen is 0.01-2ppm and the temp. thereof is set to 30 deg.C or lower. Ultrasonic waves are applied to the washing soln. 1 from the ultrasonic vibrator 5 to wash the work 6. By setting the amt. of dissolved oxygen in the washing soln. to 0.01-2ppm, many cavitations are generated and, by setting the temp. of the washing soln. to 30 deg.C or lower, the collapsing speed of cavitations is increased. Since shock waves enhanced in impact force are obtained by collapsing many cavitations at a high speed, the flash of the work can be perfectly removed by exposing the work to the impact waves.
Patent JP-S63131624-A (JP)
Title: Transistor equipment
Inventor: HAYASHI TAKAAKI
IPC: H04B1/04
Filed: 1986-11-20
Abstract: PURPOSE:To attain miniaturization of a power supply and to protect damage of the member due to a rush current by providing a means starting plural DC power supplies sequentially to drive a power amplifier so as to reduce the rush current of the equipment. CONSTITUTION:A switch circuit 9 comprising DC power supplies 8a-8c,...8n corresponding to n-set of power amplifiers 2, 3b, 3c,...3n and switches awa-swc,...swn and a control circuit 10 operating sequentially each switch are provided. In applying a DC power supply to the transmission equipment, the control circuit 10 activates the switches swa-swc,...swn sequentially, the DC power supplies 8a-8c,...8n are started sequentially by the power supply 6 to drive the power amplifiers 2, 3b, 3c...3n. Thus, the peak value of the rush current is reduced remarkably.
Patent JP-H02123724-A (JP)
Title: Manufacture of solid electrolytic capacitor
Inventor: NISHIJIMA YASUYO
IPC: H01G9/04
Filed: 1988-11-02
Abstract: PURPOSE:To prevent the occurrence of the change in characteristics by sequentially forming dielectric film, a solid-state electrolyte and a conductive paint for a cathode on the surface of an anode sintered body, immersing the device in a low-viscosity insulating resin, and impregnating a resin into a non-filled part of the solid-state electrolyte from the side of an anode lead. CONSTITUTION:Valve-action type metal powder such as tantalum and niobium is sintered, and an anode sintered body 1 is formed. Then, a dielectric film 2 is grown on the surface of the anodic sintered body 1 in the solution of phosphoric acid or nitric acid. A solid-state electrolyte 3 comprising, e.g., manganese dioxide is formed. A conductive paint 4 for a cathode is applied on said solid- sate electrolyte 3. A capacitor element 10 obtained in this way is immersed in a low-viscosity insulating resin 5. Said resin 5 is made to impregnate into a non-filled part of the solid-state electrolyte 3 from the side of an anode lead 1a of the anode sintered body 1 by a normal-pressure or vacuum impregnating method. In this way, the non-filled part is eliminated, and a solid electrolytic capacitor whose capacitance is stable is obtained.